Form4.ai tracks every SEC insider trade in real time. See every WDFC insider filing with a free account — no card.
See every WDFC insider filing — free account, no card.
Free accountWD 40 CO (WDFC) has 16 SEC Form 4 insider filings on record in the last 90 days. No insider purchases were filed — 2 sales totalling $117K. Most recent filing: Oct. 27, 2026.
Open-market value, last 90 days
Form 4 filings by type, last 90 days
| Date | Insider | Trade | Value | Price since buy |
|---|---|---|---|---|
| Oct 27, 2026 SEC filing | Olsem Patricia Q Division President, Americas | Tax withholding | — | — |
| Oct 27, 2026 SEC filing | Brass Steven A CEO and President | Tax withholding | — | — |
| Oct 27, 2026 SEC filing | KIAMILEV PHENIX Q. VP, GC & Chief Compliance Ofcr | Tax withholding | — | — |
Create a free account to see all 16 WDFC filings from the last 90 days. No card needed.
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Form 4 is the filing company officers, directors and 10% shareholders must submit to the SEC within two business days of trading their own company's stock. Open-market purchases generally carry more signal than sales, which are often scheduled in advance. More on how this works.